from the Tertiary Beds near Melbourne. 379 



but in all other characters the coincidence or representation of 

 characters is so complete that, if the tip of the spire were in 

 each case absent, the nice:t eye could scarcely separate them ; 

 yet the distinguishing character is one of such importance, and 

 so invariable, that there cr.n be no doubt of its marking a per- 

 fectly distinct species. 



This species is also closely allied to the V. nodosa (Sow.) of 

 the Hampshire Eocene Tertiary, Barton Clay, and Bracklesham 

 beds, but may be distinguished by the upper row of tubercles of 

 the spiral whorls being distinctly separated from the suture by 

 a space equalling about half the width of the space between the 

 upper and lower rows of tubercles on each whorl, as in V. sca^ 

 laris : one or two very old thick specimens show a spreading inner 

 lip, and a very faint indication in some lights of a crenulation on 

 the edge of the outer lip ; and the plaits are thickened, and in 

 one case an intermediate fifth plait appears. 



Conmion in the Tertiary clays of (Ad. 14) parish Moolap ; a 

 variety not uncommon in Tertiary clays of Orphan Asylum 

 Reserve, Fyan^s Ford, Ad. 28, not uncommon in blue clays and 

 limestone near Mount Martha. Var. a. levior has the apical angle 

 65° to 70°, often a fourth small columellar fold, and the spiral 

 transverse sulci become nearly or quite obsolete near the spinous 

 shoulder, and sometimes over more than half of the body-whorl 

 as well as on the whorls of the spire ; it is also a little stronger, but 

 is certainly only a variety. In clays and limestone. Mount Martha. 



Valuta anticingulata (M'Coy). 



Ovate ; spire moderately acute (apical angle varying from 55° 

 to 65°, usually 60°), of five slightly convex, sculptured, gradu- 

 ally increasing whorls, and a smooth, rounded, small, swollen 

 nucleus of one turn and a half ; sutures twisted or subcanalicu- 

 lated by a narrow flattened or hollow space separating the su- 

 tural line of conoidal tubercles, which are on the other side 

 separated from the obtuse tubercular ends of the nearly straight 

 longitudinal ribs by a deep spiral constriction or channel seem- 

 ing to cut the ribs to the depth of the spaces between them ; 

 body-whorl obtusely rounded at the shoulder, rounding abruptly 

 to the subsutural channel, and conoidally attenuated to a narrow 

 slightly emarginate front ; ribs thick, obtusely rounded (usually 

 nineteen, rarely fifteen, and in one case twenty-four in the last 

 whorl), usually becoming obsolete at about half the length of 

 body-whorl (sometimes shorter and often somewhat longer), but 

 becoming very prominent, and separated by rather wider, deep 

 concave spaces, at the shoulder, where each terminates in an ob- 

 tusely rounded end at the constriction or subsutural groove, 

 above which each rib seems continued as a blunt conoidal tu- 



26* 



